TABLE 3.

HBV DNA PCR reactivity in consecutive patient serum samples compared to serology

Sample no.	Resulta
	HBV viral load (pg/ml)	HBsAg	a-HBs (IU/ml)	QIAamp + PCRb	Extractor + PCRc
Patient A
1	1,427	NT	NT	Pos	Pos
2	42	Pos	NT	Pos	Pos
3	3.5	NT	NT	Pos	Pos
4	0.9	Pos	NT	Pos	Pos
5	Neg	Pos	NT	Pos	Pos
6	Neg	Pos	NT	Neg	Pos
Patient B
11	NT	Pos	NT	Pos	Pos
12	NT	Pos	402	Neg	Pos
13	NT	Neg	>1,000	Neg	Neg
14	NT	Neg	>1,000	Neg	Neg

^aPos; positive; Neg, negative; NT, not tested. 

^bQiagen extraction using 200-μl sample input. 

^c10 min at 80°C extractor protocol using 1-ml sample input.